Ball valve



Sept. 10, 1940. V A A 2,214,290

BALL VALVE Filed Oct. 24, 1938 Patented Sept. 10, 1940 UNITED STATESPATENT OFFICE V I i 2,214,290 i I BALL vALvE Loyd A. Ward, Jackson,Mich; assignor to Tomkins-Johnson Company, Jackson, Mich, a corporationof Michigan v i I Application October 24, 1938, Serial No. 236,680

lC'laim. (Cl. 251120),

This invention relates to fluid valves and more seat I and has disposedtherein a ball valve particularly to valves for providing differentmember l3 for seating against the seat l0. rates of flow of fluidpassing therethrough, de- Within the tube 12 is a shoulder l4 againstpending on the direction of flow. which bears one end of a helicalspring IS. The

5 In certain fluid systems it is sometimes adopposite end of the springl5 bears against the visable to provide for the flow of fluid atdifferent ball valve member 13 and resiliently urges the rates,depending on the direction of flow. Such same against the seat It]. Asshown particularly a case might bewhere a single conduit is usedin Fig.1, the tubular member I2 is provided with in a fluid motor forconducting both power and a plurality of circumferentially arrangedopenexhaust fluids. The'present invention provides ingsl6.

a valve for obtaining a differential rate of flow, In operation of thevalve according to the depending on the direction, by the use of aresilpresent invention, when the fluid passing thereiently closed valvein combination'with a bythrough passes from left to right, as viewed inpass of restricted size around the valve. 'Fig. l, the fluid not onlypasses through the by- 15 An object of. the present invention is topropass ports II, but also forces the ball valve memll vide a valve forinsertion in a conduit for perber I3 from its seat against the action ofthe mitting one rate of flow of fluid in one direction spring l5,permitting a direct flow of fluid. and another rate of flow of fluidinthe opposite Substantially all of the fluid passing the seat l0,direction. either through the by-pass ports II or past the Anotherobject of the invention is to provide ball valve member I3, passesthrough the chama resiliently closed valve with a restricted byber 4 andreturns to' the passage 3 through the. pass therearound. openings IS inthe tubular member l2. When A further object of the invention is toprothe fluid passes through the valve from right vide a spring pressedball valve continuously to left, as viewed in Fig. 1, the ball valvememurged against a seat in combination with a byber 13 is closed underthe action of thespring 25 pass past the seat. I l5, and the only fluidpassing the valve passes These and other objects will be apparent fromthrough'the restrictedby-pass ports 'I I. It will the followingspecification when taken with the. be understood that thecross-sectional area of accompanying drawing, in which "the by-passports H is considerably less than Fig. 1 is a vertical section throughthe valve that of the passage 3 so that when the fluid is comprising thepresent invention passing from right to left, as viewed in Fig. 1,

Fig. 2 is an end viewjthereof,'and I the flow thereof is considerablyless than the Fig. 3 is a section on theline III-III of Fig. 1. passageof the fluid from" left to right when the Referring particularly to thedrawing, the ball valve member I3 is moved from its seat I0. referencecharacter I indicates a body at one end It will be understoodthat, whileI prefer the of which is arranged a coupling 2. Thebody I constructiondisclosed because it provides a subis provided with a straight throughpassage 3 stantially straight through or stream-"lined flow intermediatetheends of which is a chamber, 4. of fluid, the present. invention isnot necessarily At the right end of the body has shown in Fig. limited'to the spring and. ball check valve, but 0 1,' is a pipe connection 5.'At'the' left end of the that other types of check valves may be used. 0body I, as shown in Fig. 1, the coupling 2 is se- I Itwill be furtherunderstood that where a valve cured and comprises seating members 6 and'I.- is arranged in other positions than horizontal, The seating member1 is threaded into the body gravity may be employed to. take place ofthe l. Seating membersB and I are olamped tospring l5.. Furthermore,instead of using the 5 gether by a coupling ring 8. Integral with theby-p Ports ll y-P fl y e b l 5 seating member 6 is a pipe connection 9.valve member l3, theseat I0 may have its sur- At one end of. theichamberl is provided a face scored, as shown, in Patent No- 851,999, for valveseat l0 having spaced th'erearound, as instance; shown p rly in Figs. 1and 3, p urali y Having thus described my invention, what I 0frestricttd Y-P Ports L P l'fi i g f m desire'to secureby LettersPatentand claim is: 50 the opposite end ofthe chamber 4 and integral A va1vecomprising a bQdy a passage t with the pipe Connection 5 is a tubularfim through, said passage having intermediate its w h is Centrallydisposed Wit in t e. C mends a chamber, a cylindrical tube communicatber4 a d co p s a p (of the passage ing with said passage projecting intosaid cham- T 1 end t tube 12 is adjacent the ber from one end thereof, avalve seat at the 55 rations therein between said spring seat and saidvalve seat, and said body having a plurality of leakage ports past saidvalve seat comprising a by-pass around said ball valve when the same ison said valve seat.

LOYD A. warm;

